COURSE UNIT TITLE

: ADMIXTURES FOR CONCRETE

DEGREE PROGRAMMES

Description of Individual Course Units

Course Unit Code Course Unit Title Type Of Course D U L ECTS
CIE 5108 ADMIXTURES FOR CONCRETE ELECTIVE 3 0 0 8

Offered By

Graduate School of Natural and Applied Sciences

Level of Course Unit

Second Cycle Programmes (Master's Degree)

Course Coordinator

PROFESSOR DOCTOR KAMILE TOSUN FELEKOĞLU

Offered to

CONSTRUCTION MATERIALS
CONSTRUCTION MATERIALS
CONSTRUCTION MATERIALS

Course Objective

In order to improve the properties of concrete both in fresh and hardened state or, when concrete of special properties is required 'admixtures' other than the basin ingredients of concrete should be added to the mix.

The use of admixtures gains greater acceptance and the amount of concrete containing admixtures increases day by day. Thus, a better understanding of the properties of admixtures by the concrete engineer and technologist is necessary to enable him to be less dependent on the reliability of the advice of the admixture supplier and the side effects are described in this course.

Learning Outcomes of the Course Unit

1   to be able to classify the results of experimental data used for the quality control of concrete and mortar admixtures.
2   to be able to indicate the advantages and disadvantages of concrete admixtures.
3   to be able to compare the functions and mechanisms of action of concrete admixtures.
4   to be able to classify the concrete admixtures according to the purpose of use.
5   to be able to compile the studies on the use of concrete admixtures.

Mode of Delivery

Face -to- Face

Prerequisites and Co-requisites

None

Recomended Optional Programme Components

None

Course Contents

Week Subject Description
1 Introduction
2 Definitions, Specifications and classification of Concrete Admixtures 1.1. Definitions of concrete admixture 1.2. The role of specifications and standards for admixtures 1.3. Classification of admixtures
3 Surface active chemicals 2.1. Composition and mechanism of air 2.2. Air-entraining surfactants
4 Voids in air-entrained hardened concrete 3.1. Mechanism of frost damage 3.2. Effects of air-entrainment on the water-cement system 3.3. Effects of air-entrainment on the properties of plastic concrete 3.4. Effects of air-entrainment on the properties of hardened concrete
5 Factors affecting the Amount of Air-Entrainment 4.1. Recommended air contents for frost resistance 4.2. Testing methods to determine the entrained air. 4.3. Testing methods to determine the conformance of air-entraining admixture and the relevant standard limits.
6 Water reducing surfactants 5.1. Types and compositions of Water reducing surfactants 5.2. Effects of Water reducing surfactants on fresh concrete properties 5.3. Effects of Water reducing surfactants on hardened concrete properties 5.4. Testing methods for determining the conformance of water reducers
7 Superplasticizers 6.1. Nature of Superplasticizers 6.2. Effects of Superplasticizers 6.3. Dosage of Superplasticizers 6.4. Loss of workability 6.5. Superplasticizers-cement compatibility 6.6. Application of Superplasticizers
8 Set-controlling chemicals 8.1. Accelerators
9 Set-controlling chemicals (cont.) 9.1. Set retarders
10 Mineral admixtures 10.1. Definition and classification 10.2. Pozoolanic reaction and activity 10.3. Composition, chemical and physical properties
11 Effects of mineral admixtures on the properties of concrete 11.1. Effects on fresh concrete properties 11.2. Effects on hardened properties
12 Corrosion-inhibiting admixtures
13 Damp-Proofing admixtures
14 Miscellaneous admixtures 14.1. Anti-bacterial admixtures 14.2. Permeability-reducing admixtures

Recomended or Required Reading

Textbook(s): - Rixom, M.R., and Mailvaganam N.P., Chemical Admixtures for Concrete, E&F, N., Spon Ltd., 1986.
- Erdoğan, Y. T., Admixtures for Concrete, Middle East Technical University Press, Ankara, 1997.
Supplementary Book(s): - Neville, A.M., Properties of Concrete, Longman Group Limited, Fourth Edition, 1995.
- Mindess, S., and Young J.F., Concrete, Prentice-Hall Inc., Englewood Cliffs, 1981.

Planned Learning Activities and Teaching Methods

Course presentations, textbook and test methods will be used.

Assessment Methods

SORTING NUMBER SHORT CODE LONG CODE FORMULA
1 MTE MIDTERM EXAM
2 ASG ASSIGNMENT
3 FIN FINAL EXAM
4 FCG FINAL COURSE GRADE MTE * 0.25 + ASG *0.25 +FIN *0.50
5 RST RESIT
6 FCGR FINAL COURSE GRADE (RESIT) MTE * 0.25 + ASG *0.25 +RST *0.50


Further Notes About Assessment Methods

*Assignments will be considered.

Assessment Criteria

Midterm exam, final exam with homework assignments during this period will be used in the evaluation.

Language of Instruction

English

Course Policies and Rules

To be announced.

Contact Details for the Lecturer(s)

Assist.Prof.Dr.Kamile Tosun Felekoğlu (kamile.tosun@deu.edu.tr)

Office Hours

Will be announced at the beginning of semester.

Work Placement(s)

None

Workload Calculation

Activities Number Time (hours) Total Work Load (hours)
Lectures 14 3 42
Preparations before/after weekly lectures 14 5 70
Preparation for midterm exam 1 40 40
Preparation for final exam 1 20 20
Preparing assignments 1 20 20
Midterm 1 2 2
Project Assignment 1 2 2
Final 1 2 2
TOTAL WORKLOAD (hours) 198

Contribution of Learning Outcomes to Programme Outcomes

PO/LOPO.1PO.2PO.3PO.4PO.5PO.6PO.7PO.8PO.9PO.10PO.11
LO.132232
LO.223
LO.3333
LO.423
LO.5333

CONTACT INFORMATION
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Phone: +90(232) 412 12 12 - Fax: +90 (232) 464 81 35

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